The Jesus we never knew Matthew 3: 13 - 17 The baptism of Jesus

Topics: inauguration, culture, transformation, revelation, friends, hope, baptism, chosen

An atmospheric turbulence model which accommodates variability of turbulence properties along an aerospace vehicle trajectory was developed. The technique involves the use of Dryden spectral forms in which the defining parameters are the standard deviations (sigma) and integral scales (L) of turbulence. These spectra are expressed as nondimensional functions of the nondimensional frequency Omega = omega L/V where omega is dimensional radian frequency and V is the true air speed of the aerospace...

Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC ENTRY SIMULATION, ATMOSPHERIC TURBULENCE, FLIGHT...

The principals of operation and the capabilities of birefringent filters systems are examined. Topics covered include: Lyot, Solc, and partial polarizer filters; transmission profile management; tuning birefringent filters; field of view; bandpass control; engineering considerations; and recommendations. Improvements for field of view effects, and the development of birefringent filters for spaceflight are discussed in appendices.

Topics: NASA Technical Reports Server (NTRS), BIREFRINGENT FILTERS, IMAGING TECHNIQUES, INTERFEROMETERS,...

One, two, and three dimensional Discrete Fourier Transforms (DFT) and geometric interpretations of their periodicities are presented. These operators are examined for their relationship with the two sided, continuous Fourier transform. Discrete or continuous transforms of real functions have certain symmetry properties. The symmetries are examined for the one, two, and three dimensional cases. Extension to higher dimension is straight forward.

Topics: NASA Technical Reports Server (NTRS), DIGITAL TECHNIQUES, FAST FOURIER TRANSFORMATIONS, INTEGRAL...

A model for Mesosphere - Stratosphere - Troposphere (MST) radar spectra is developed following the formalism presented by Pinkel (1981). Expressions for the one-dimensional spectra of radial velocity versus frequency and versus radial wave number are presented. Their dependence on the parameters of the gravity-wave spectrum and on the experimental parameters, radar zenith angle and averaging time are described and the conditions for critical tests of the gravity-wave hypothesis are discussed....

Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC SOUNDING, ATMOSPHERIC TEMPERATURE, DOPPLER RADAR,...

Wavelets are an exciting new topic in applied mathematics and signal processing. This paper will provide a brief review of wavelets which are also known as families of functions with an emphasis on interpretation rather than rigor. We will derive an indirect use of wavelets for the solution of integral equations based techniques adapted from image processing. Examples for resistive strips will be given illustrating the effect of these techniques as well as their promise in reducing dramatically...

Topics: NASA Technical Reports Server (NTRS), APPLICATIONS OF MATHEMATICS, BACKSCATTERING,...

The JPL IV interferometer, and infrared Michelson interferometer, was built specifically for recording high resolution solar absorption spectra from remote ground-based sites, aircraft and from stratospheric balloons. The instrument is double-passed, with one fixed and one moving corner reflector, allowing up to 200-cm of optical path difference (corresponding to an unapodised spectral resolution of 0.003/cm). The carriage which holds the moving reflector is driven by a flexible nut riding on a...

Topics: NASA Technical Reports Server (NTRS), ABSORPTION SPECTRA, ATMOSPHERIC COMPOSITION, INFRARED...

Today you will be encouraged to take time to be alone with the Lord. This is not your typical devotional time; it is a time to "wait on the Lord." It takes courage to meet with God in this way. We are looking at the challenges from within that confront you when it is just you and the Lord with no agenda but to be in His presence.

Topics: sermon, Jesus Christ, Christmas, Christian, Holy Spirit, God, solitude, forgiveness, salvation,...

Automated engine diagnostics using cognitive computing methodologies are investigated. Space shuttle main engine vibrational data is used to test the algorithms.

Topics: NASA Technical Reports Server (NTRS), ALGORITHMS, BEARINGS, FAILURE ANALYSIS, FUZZY SETS, NEURAL...

The goal was to develop cryogenic high-electron-mobility transistor (HEMT) based radiometers and use them to measure the anisotropy in the cosmic microwave background (CMB). In particular, a novel Fourier transform spectrometer (FTS) built entirely of waveguide components would be developed. A dual-polarization Ka-band HEMT radiometer and a similar Q-band radiometer were built. In a series of measurements spanning three years made from a ground-based site in Saskatoon, SK, the amplitude,...

Topics: NASA Technical Reports Server (NTRS), MICROWAVE SPECTROMETERS, MICROWAVE RADIOMETERS, HIGH ELECTRON...

A reconstruction technique for reducing computation burden in the 3D image processes, wherein the reconstruction procedure comprises an inverse and a forward model. The inverse model uses a hybrid dual Fourier algorithm that combines a 2D Fourier inversion with a 1D matrix inversion to thereby provide high-speed inverse computations. The inverse algorithm uses a hybrid transfer to provide fast Fourier inversion for data of multiple sources and multiple detectors. The forward model is based on...

Topics: NASA Technical Reports Server (NTRS), IMAGE RECONSTRUCTION, FOURIER TRANSFORMATION, ALGORITHMS,...

The atmospheric composition inside spacecraft is dynamic due to changes in crew metabolism and payload operations. A portable FTIR gas analyzer was used to monitor the atmospheric composition of four modules (Core lab, Veggie Plant Atrium, Hygiene module, and Xhab loft) within the Deep Space Habitat '(DSH) during the Mission Operations Test (MOT) conducted at the Johnson Space Center. The FTIR was either physically relocated to a new location or the plumbing was changed so that a different...

Topics: NASA Technical Reports Server (NTRS), FOURIER TRANSFORMATION, INFRARED SPECTRA, INFRARED...

Exponential growth in microelectronics technology such as field-programmable gate arrays (FPGAs) has enabled high-performance spaceborne instruments with increasing onboard data processing capabilities. As a commonly used digital signal processing (DSP) building block, fast Fourier transform (FFT) has been of great interest in onboard data processing applications, which needs to strike a reasonable balance between high-performance (throughput, block size, etc.) and low resource usage (power,...

Topics: NASA Technical Reports Server (NTRS), FIELD-PROGRAMMABLE GATE ARRAYS, DATA PROCESSING EQUIPMENT,...

No abstract available

Topics: NASA Technical Reports Server (NTRS), MICROPHONES, FOURIER TRANSFORMATION, BEAMFORMING, SIDELOBE...

This is the final MNE 5 document on The Information Factor within a Comprehensive Approach to Multinational Crisis Management. It summarizes all of the experimentation results and documentation prepared for MNE 5 on the subjects of the information factor, information strategy, and information operations

Topics: DTIC Archive, FEDERAL ARMED FORCES OFFICE STRAUSBERG (GERMANY) BUNDESWEHR TRANSFORMATION CENTER,...

A brief review of Stokes' problem for the ellipsoid as a reference surface is given. Another solution of the problem using an ellipsoidal kernel, which represents an iterative form of Stokes' integral, is suggested with a relative error of the order of the flattening. On studying of Rapp's method in detail the procedures of improving its convergence are discussed.

Topics: NASA Technical Reports Server (NTRS), ELLIPSOIDS, GEODESY, GRAVITY ANOMALIES, INTEGRAL EQUATIONS,...

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Dec 6, 2014
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The topic of transformation is central to the movies in this episode of the podcast. We look at two of our favorites from our youth, starting with 1973's Sssssss , starring the one and only Strother Martin , and Dirk Benedict . This tells the story of a total stoner , who is working with snakes. Working a little TOO closely with them as a matter of fact. We meet a king cobra that would rather we just walk away, and we have our vision obscured by terrible tempra-paint foliage. It is a...

Topics: transformation, air bladder, snake, cobra, podcast

This case study traces the development of one teacher as she participated in Teachers As Artist, a four-year professional development program for teachers. I have used transformation theory, an articulation of the complex processes involved in life-altering adult learning, to examine her development from early dispirited participation in the arts program to her new stance as ardent advocate for the arts in education. This case study illustrates how institutional, curricular, pedagogical, and...

Topics: ERIC Archive, Faculty Development, Teacher Improvement, Art Education, Teacher Attitudes, Case...

Substantial progress was made in analyzing the physical sources needed to realize pulsed-beam wavelets in practice. This was accomplished by extending classical potential theory to complex space-time, where point sources become distributions supported on disk-like dishes emitting pulsed beams. A careful and rigorous regularization method had to be devised for these distributions to be well defined. This also led to an explicit computation of the Fourier transform of pulsed-beam wavelets, which...

Topics: DTIC Archive, Kaiser, Gerald, VIRGINIA CENTER FOR SIGNALS AND WAVES GLEN ALLEN, *ELECTROMAGNETIC...

We examine the imaging of standard Brownian Fractal surfaces, and find that given certain assumptions, a Fractal surface with power spectrum proportional to f-Beta has an image with power spectrum proportional to f squared -Beta.

Topics: DTIC Archive, Pentland, Alex, SRI INTERNATIONAL MENLO PARK CA ARTIFICIAL INTELLIGENCE CENTER,...

We measured the vapor-phase absorptivity coefficient of cyclohexyl methylphosphonofluoridate (GF), a chemical warfare agent, in the mid-infrared (4000-550/cm) at a spectral resolution of 0.125/cm. The GF used in the feedstock was purified by fractional distillation and analyzed by NMR and gas chromatography-mass spectrometry to verify its purity. In this report, we describe the experimental method used to acquire the individual spectra that produced the composite spectrum, summarize the...

Topics: DTIC Archive, EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND...

Applications of a simple underwater imaging model (SUIM) are presented, which help to identify limiting factors in conventional underwater imaging applications, such as diver visibility. The model includes the effects of scattering caused by particles as well as turbulent flow structure. The effect of path radiance is also discussed.

Topics: DTIC Archive, NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV, *IMAGES, *UNDERWATER,...

Antimicrobial coatings deposited onto ultra high molecular weight polyethylene (UHMWPE) films were investigated using an atmospheric pressure plasma enhanced chemical vapor deposition (AP-PECVD) process. Varying concentrations of a guanidine-based liquid precursor, 1,1,3,3-tetramethylguanidine, were used, and different deposition conditions were studied. Attenuated total reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy and X-ray Photoelectron Spectroscopy (XPS) were used to study...

Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH...

Recent advances in computational models to simulate turbulent, reactive flow fields have outpaced the ability to collect highly constraining data--throughout the entire flow field--for validating and improving such models. In particular, the ability to quantify in three dimensions both the mean scalar fields (i.e. temperature & species concentrations) and their respective fluctuation statistics via hyperspectral imaging would be a game-changing advancement in combustion diagnostics, with...

Topics: DTIC Archive, AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF...

We develop a numerically stable algorithm for electromagnetic wave propagation through planar stratified media. This algorithm is implemented in a modern programming language and is suitable for the study of such applications as Anderson localization and perfect lensing. Our algorithm remains numerically stable even in the presence of large absorption. Furthermore, in the context of the linear response laws and causality, we analyze a vanishing absorption approximation, which is commonly used...

Topics: DTIC Archive, COLORADO SCHOOL OF MINES GOLDEN DEPT OF PHYSICS, *ELECTROMAGNETIC SCATTERING,...

The 2-D correlation/convolution which can be achieved in real time via four wave mixing in nonlinear materials has been investigated in detail to determine the accuracy and signal power possible. This analysis was initiated under other support; the experimental confirmation was completed under this contract. The analysis which is based on Fourier transforms of the equations of nonlinear interactions has resulted in a closed from solution for the output and clearly shows how it differs from the...

Topics: DTIC Archive, Steier, William H, UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF ELECTRICAL...

The absolute electron-impact optical emission cross sections of numerous vibrational bands of the second positive band system of the nitrogen molecule have been measured for electron impact energy from threshold up to 600 eV. From the optical data the apparent electron-impact excitation cross sections for five vibrational levels of the C3Pi sub u electronic state of the nitrogen molecule have been determined. We have constructed a new apparatus for measuring the electron-impact optical cross...

Topics: DTIC Archive, WISCONSIN UNIV-MADISON DEPT OF PHYSICS, *MOLECULES, *GASES, *COLLISIONS, *ATMOSPHERIC...

This report describes methods for the estimation of local motion in a sequence of images. The methods are based on a global minimization of a relevant error criterion using a conjugate gradient technique. The expansion of the displacement field is carried out with the use of basis functions according to a Fourier transform or a cosine sine transform in space and time. These representations automatically result in a continuous displacement field where subpixel displacements can be detected. The...

Topics: DTIC Archive, Berkhoff, A. P., FYSISCH EN ELEKTRONISCH LAB TNO THE HAGUE (NETHERLANDS), *IMAGE...

Topics: DTIC Archive, Bernstein, Dennis S., MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING,...

Conjugate nets, Laplace transformations and projective translation surfaces are exploited for CAGD purposes. The latter are shown to be equivalent with conjugate nets having degenerated Laplace transforms. Relations to conjugate nets with planar silhouettes, supercyclides and Dupin cyclides are given.

Topics: DTIC Archive, Degen, W. L., STUTTGART UNIV (GERMANY) MATHEMATICS INST, *CURVATURE, *LAPLACE...

Reprint of a presentation made at the Fourier Euroworkshop on Advanced Signal Processing, 10-13 April 2000, Corfu, Greece. Purpose of Talk: Provide an overview of some of the signal processing techniques (including Coherence and Time-Delay Estimation that use Fourier Transforms) for underwater acoustic applications. Stimulate thinking, experiments, and tests of technology developed for underwater acoustics for dual-use in other fields including biomedicine, commercial fishing, fish monitoring...

Topics: DTIC Archive, NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI, *DUAL MODE, *SIGNAL PROCESSING, *SONAR,...

Pattern recognition encompasses two fundamental tasks: description and classification. Given an object to analyze, a pattern recognition system first generates a description of it (i.e., the pattern) and then classifies the object based on that description (i.e., the recognition). Two general approaches for implementing pattern recognition systems, statistical and structural, employ different techniques for description and classification. Statistical approaches to pattern recognition use...

Topics: DTIC Archive, Olszewski, Robert T, CARNEGIE-MELLON UNIV PITTSBURGH PA SCHOOL OF COMPUTER SCIENCE,...

Experimental Five humic acid (HA) samples isolated from the two original (collected in the field) Wyoming soils in duplicate, Guernsey North (GN4+5 and GN6) and Guernsey South (GS4+5 and GS6), and one Utah soil, Dugway (D11+12+13+14), and seven HA samples isolated from the same soils but collected in duplicate or triplicate from control (no plants grown) greenhouse pots (GN-A and GN-B, GSA and GS-B, D-A, D-B and D-C), object of this research, were obtained from the USDA-St.Paul group. A...

Topics: DTIC Archive, Nicola, Senesi, UNIVERSITA DI BARI (ITALY) DIPARTIMENTO DI CHIMICA, *ACIDS, *GRASSES,...

The final aim of this work is to perform rapid classification of tagged cardiac MR images as normal and abnormal, In the proposed technique, images are first analyzed using harmonic phase analysis and synthetic tags are computed over the myocardium Cubic curves are fitted to these tags and curve parameters are compared at various regions of the myocardium In this initial study, the ratios of curve parameters between normal and diseased hearts, such as dilated cardiomyopathy (DCM) and heart with...

Topics: DTIC Archive, Goksel, D, BOGAZICI UNIV ISTANBUL (TURKEY) INST OF BIOMEDICAL ENGINEERING,...

Due in part to the very high flexibility of image contrast, the applications of magnetic resonance imaging (MRI) continue to grow. Advances in data acquisition speed, as facilitated by MRI physics, have provided the motivation for specific real-time techniques. For useful and broad implementation this has required that real-time signal processing methods be used. In this work the principal elements of a real-time MRI system are reviewed, major signal processing techniques presented, and several...

Topics: DTIC Archive, Riederer, S J, MAYO CLINIC ROCHESTER MN, *SIGNAL PROCESSING, *MAGNETIC RESONANCE...

Topics: DTIC Archive, NATO SUPREME ALLIED COMMAND TRANSFORMATION NORFOLK VA, *NATO FORCES, NATO

The resin characterization standard process description outlines methods, specifications, and general information used to conduct resin characterization at the US Army Research Laboratory???s Coatings, Corrosion, and Engineered Polymers Branch. Specifically, it defines methods for assessing whether resins meet desired Army properties using Dynamic Mechanical Analysis, Differential Scanning Calorimetry, Fourier Transform Infrared Spectroscopy, Nuclear Magnetic Resonance Spectroscopy, Scanning...

Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH...

The received energy of sound waves generated by underwater explosive sources (SUS) was recorded during August and September 1973 as part of the CHURCH ANCHOR Exercise conducted in the central Northeastern Pacific Ocean. The analyzed and digital magnetic tape recordings of these data have been analyzed by digital hardware/software processing techniques including automatic shot detection, shot length estimation, and fast Fourier transform (FFT) spectrum analysis. Results of these analyses are...

Topics: DTIC Archive, Anderson, Aubrey L., TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS, *ACOUSTIC DETECTION,...

The Fourier transform method is applied to the problem of computing viscous flows involving boundary-layer separation, based on the triple-deck model of viscous-inviscid flow interaction. As used here, the method is pseudo-spectral in that the nonlinear inertia terms are evaluated in physical variables, although the main computations are made in spectral variables. The Fast-Fourier-Transform algorithm is used to expedite the iterated transformations. The method is much faster than conventional...

Topics: DTIC Archive, Burggraf,Odus R, OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS, *MATHEMATICAL MODELS,...

The theory of the acousto-optical interaction has been investigated in many papers. In this paper, the fundamental theory is used to develop a basic theory that explains the signal processing capabilities of Bragg cell devices. Examples of devices for frequency estimation, correlation, and Fourier transformation are presented. (Author)

Topics: DTIC Archive, Torrieri,Don J, ARMY MATERIEL DEVELOPMENT AND READINESS COMMAND ADELPHI MD...

The theory of the acousto-optical interaction has been investigated in many papers. In this paper, the fundamental theory is used to develop a basic theory that explains the signal processing capabilities of Bragg cell devices. Examples of devices for frequency estimation, correlation, and Fourier transformation are presented. (Author)

Topics: DTIC Archive, Torrieri,Don J, ARMY MATERIEL DEVELOPMENT AND READINESS COMMAND ADELPHI MD...

An instability in the output of a high-power unstable-resonator cw CO2 laser is analyzed in terms of the perturbative effect of an acoustic wave which is induced by laser heating. The alignment sensitivity of such a laser is also explained in terms of a temperature gradient along the gas-flow direction, which is transverse to the laser axis. We extend our instability analysis to a simple one-dimensional model of a supersonic laser, which we determine to be stable. Finally, we present a new...

Topics: DTIC Archive, Ballantyne,A, AVCO EVERETT RESEARCH LAB INC EVERETT MA, *LASER CAVITIES,...

A guide to digital spectral analysis is presented. The emphasis is on a practical engineering understanding of the techniques, based on experience gained in their application to the analysis of flight measurements of aircraft vibration in buffet. Consequently, particular attention is directed to the practical difficulties encountered when the duration of the available data is severely limited, and to the use of the coherence function as a tool in the interpretation of complicated responses....

Topics: DTIC Archive, Buckingham,S L, ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND), *FOURIER...

Stable autoregressive (AR) and autoregressive moving average (ARMA) processes belong to the class of stationary linear time series. A linear time series is Gaussian if the distribution of the independent innovations (sigma (t)) is normal. Assuming that E sigma (t) = 0, some of the third order cumulants sub c xxx (m,n) = Ex(t)x(t+m)x(t+n) will be non-zero if the sigma (t) are not normal and E sigma cube(t)=0. If the relationship between x(t) and sigma (t) is non-linear, then (x(t)) is...

Topics: DTIC Archive, Hinich,Melvin J, VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF...

Four ongoing projects are briefly described. These are: 1. Analysis of the Howells-Applebaum algorithm in the presence of moving interference; 2. The use of lattice filters in adaptive array processors; 3. Stability analysis of LMS adaptive filters; and 4. Adaptive array processors with moving interference treated from the frequency-domain point of view. Conclusions are: the Howells-Applebaum algorithm is so insensitive to interference motion that it is unnecessary to consider such motion in...

Topics: DTIC Archive, Tuteur,Franz B, YALE UNIV NEW HAVEN CT CENTER FOR SYSTEMS SCIENCE, *Signal...

*Abstracts

Topics: DTIC Archive, OHIO STATE UNIV COLUMBUS, *Wave propagation, *Scattering, *Abstracts, *Symposia,...

An expression for the acoustic scattered pressure from an impedance covered cylinder due to an incident plane pulse is obtained analytically. The application of Fourier transform on time and subsequent Sommerfield-Watson transformation results in separate expressions for geometrically reflected pressure and for creeping (or circumferential) waves. Using Cauchy contour integration theorem and saddle-point methods, the inverse Fourier transform is evaluated. The impulse response and convolution...

Topics: DTIC Archive, Khavaran,Abbas, PENNSYLVANIA STATE UNIV UNIVERSITY PARK APPLIED RESEARCH LAB,...

The excitation of a parallel-plate electromagnetic pulse (EMP) simulator by an electromagnetic pulse via a conical transmission line is analyzed. The analysis first establishes an exact formulation of the problem by use of the technique of electric-field integrodifferential equations. It then goes over to a simpler, approximate formulation in the form of an integrodifferential equation for the total longitudinal surface current flowing on the simulator. This equation is further transformed into...

Topics: DTIC Archive, Lam,J, DIKEWOOD INDUSTRIES INC ALBUQUERQUE NM, *TRANSMISSION LINES, *ELECTROMAGNETIC...

In this report we study some properties and applications of Hermitian operators formed by the iteration of any given operator with its adjoint. Such a given operator might arise in array and aperture antenna theory and, as shown in examples, the eigenfunctions of the corresponding Hermitian iterated operator can be used to maximize power transferred from an array to a point, or from one aperture to a second aperture. Constraints, such as a normed power source radiating into a specified sector...

Topics: DTIC Archive, Inagaki, Naoki, OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB, *ANTENNA RADIATION...

In this report we study some properties and applications of Hermitian operators formed by the iteration of any given operator with its adjoint. Such a given operator might arise in array and aperture antenna theory and, as shown in examples, the eigenfunctions of the corresponding Hermitian iterated operator can be used to maximize power transferred from an array to a point, or from one aperture to a second aperture. Constraints, such as a normed power source radiating into a specified sector...

Topics: DTIC Archive, Inagaki, Naoki, OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB, *ANTENNA RADIATION...